OSWEGO, N.Y. -- A convicted murderer testified today that Roger Breckenridge told him 20 years ago that he was involved in disposing of the body of 1994 kidnapping victim Heidi Allen.

James "Thumper" Steen took the stand in a hearing over whether the only man convicted in Allen's kidnapping, Gary Thibodeau, should have the conviction overturned.

Breckenridge brought up Allen's kidnapping four or five times, Steen said.

"I can remember hearing it over at Wescott's house" from Breckenridge, Steen said, referring to the home of Breckenridge's then-girlfriend, Jennifer Wescott. "Everybody thought Roger was just blowing steam.That's all he ever did."

One time, Breckenridge told Steen that Allen's body was in a vehicle that Steen had picked up at Richard Murtaugh's scrapyard in Volney, Steen testified.

Roger Breckenridge

"Roger showed up drunk and said, 'You know what was in that van?'" Steen said. "He went on about the remains Heidi Allen. I asked Rich Murtaugh about it, and he said no, it wasn't."

Steen was convicted in 2011 of murdering his estranged wife, Vicki West, and her boyfriend, Charles Carr Jr. in 2010. Steen's serving a life sentence in prison.

He appeared in handcuffs and leg irons, wearing a baggy prison-issue jacket. His hair was pulled back in small ponytail. His long goatee beard bobbed as he answered questions from Thibodeau's lawyer, Randi Bianco.

Steen told investigators last month that Breckenridge had hinted to him that Allen's body was in a scrapped vehicle that Steen had hauled to Canada.

He never mentioned that to investigators who questioned him in 2013.

Breckenridge made the admissions in late 1994 or the spring of 1995, Steen said.